test: migrate pipelines/rename to @oclif/test v4

Author: eablack

packages/cli/test/unit/commands/pipelines/rename.unit.test.ts

@@ -0,0 +1,25 @@
+import {expect} from 'chai'
+import {runCommand} from '@oclif/test'
+import nock from 'nock'
+
+describe('pipelines:rename', function () {
+  const oldName = 'polaris'
+  const newName = 'vega'
+  const id = '12345'
+
+  afterEach(function () {
+    nock.cleanAll()
+  })
+
+  it('displays the right messages', async function () {
+    nock('https://api.heroku.com')
+      .get(`/pipelines?eq[name]=${oldName}`)
+      .reply(200, [{id, name: oldName}])
+      .patch(`/pipelines/${id}`)
+      .reply(200, {id, name: newName})
+
+    const {stderr} = await runCommand(['pipelines:rename', oldName, newName])
+
+    expect(stderr).to.include(`Renaming ${oldName} pipeline to ${newName}... done`)
+  })
+})